Industrial Weather Station Sensor Specs

Vaisala WMS301 Anemometer

Wind speed
Measurement range: 0.5 to 60 m/s
Starting threshold: < 0.4 m/s
Distance constant: 2 m
Transducer output: 1 Hz ~ 0.7 m/s
Accuracy (within range 0.4 to 60 m/s):
  Wind speed up to 10 m/s: ± 0.3 m/s
  Wind speed over 10 m/s: ± 2%
Characteristic transfer function: U = -0.24 + 0.699 × F
(where U = wind speed [m/s], F = output frequency [Hz])

Wind direction
Measurement range:
  WMS301 with 1-wiper potentiometer: 0 to 355°
  WMS302 with 2-wiper potentiometer: 0 to 360°
Starting threshold: 1.0 m/s
Damping ratio: 0.3
Overshoot ratio: 0.4
Delay distance: 0.6 m
Accuracy: better than ±3°

General
Supply voltage 3 to 15 VDC
Electrical connections 5-pin male with 12 mm threads
Recommended connector at cable end BINDER 99 1436 814 05
Operating temperature: –40 to +55 °C (–40 to +131 °F)
Storage temperature: –60 to +65 °C (–76 to +149 °F)

Material
Housing: AlMgSi, gray anodized
Cups: PA, reinforced with carbon fibre, black
Vane: PA, reinforced with fiberglass, white
Dimensions: 265 (h) × 360 (Ø) mm
Weight: 360 g

Hydrological Services TB4 Rain Gauge

Receiver: 200 mm diameter machined aluminium rim, powder coated
Bucket capacity: 0.2 mm, 0.5 mm , 1.0 mm or 0.01 inch of rainfall
Sensitivity: one tip
Measuring range: 0 to 500 mm / hr
Calibration accuracy: ±2 % for intensities from 25 to 300 mm/hr, ±3 % for intensities from 300 to 500 mm/hr
Humidity: 0 to 100 %
Temperature: - 20 to +70 Contact system: dual reed switches potted in soft silicon rubber with varistor protection
  Capacity: 0.5 amp, 24 Volts DC
  Resistance: Initial contact resistance 0.1 OHMS
  M.T.B.F: 108 to 109 Operations
Syphon: 0.4 mm capacity of rainfall - made from brass with a non hydroscopic outer case
Bucket: chrome plated injection moulded, ABS bucket balanced to ± 0.05 gms. Retains less than 0.2 ml of water in each bucket after tipping
Base: injection moulded non hydroscopic ABB
Level: bulls eye level fitted to base
Mounting holes: three 10 mm diameter mounting holes at 117 mm p.c.d. in feet moulded to outside diameter of base
Drain fittings: able to attach 12 mm inside diameter tubing, to catch rainfall after passing through buckets
Bucket pivot system: two stainless steel rolling bearings, mounted at 90 degrees to bucket axle
Insect covers: stainless steel mesh on all openings to prevent insects and ants entering gauge
Outer enclosure: keyed to enable the release of the outer enclosure without the need for the removal of the three securing screws
Height: 330mm (13"); Weight: 2 kg (2.2 lbs)
Packed Dimensions: 3.2 Kg (7 lbs), 0.03m3

Davis 07852 Rain Gauge

Sensor Type: Tipping bucket with magnetic reed switch
Output: Contact closure
Attached Cable Length: 40' (12 m)
Cable Type: 4-conductor, 26 AWG
Connector: Modular connector (RJ-11)
Recommended Maximum Cable Length: 900' (270 m)
Housing Material: UV-stabilized ABS plastic

Dimensions
Rain Collector: 8.75" diameter x 9.5" high (16.5 cm diameter x 24 cm high)
Collection Area: 33.2 in2 (214 cm2)
Weight: 2 lbs. 3 oz. (1 kg)

Davis 06450 Solar Radiation sensor

Operating Temperature: -40° to +150° F (-40° to +65° C)
Storage Temperature: -50° to +158°F (-45° to +70°C)
Transducer: Silicon photodiode
Spectral Response (10% points): 400 to 1100 nanometers

Cosine Response
Percent of Reading: ±3% (0° to ±70° incident angle); ±10% (±70° to ±85° incident angle)
Percent of Full Scale: ±2% (0° to ±90°)
Supplied Cable Length: 3' (0.9 m)
Cable Type: 4-conductor, 26 AWG
Connector: Modular RJ-11

I/O Specifications
Green wire: Output (0 to +3VDC); 1.67 mV per W/m2
Red & Black wires: Ground
Yellow wire: +3 VDC ±10%; 1mA (typical)
Temperature Coefficient: +0.067% per °F (+ 0.12% per °C)
Reference temperature: 77°F (25°C)
Correction per degree above reference temp: -0.067% of reading per °F (-0.12% per °C)
Correction per degree below reference temp: +0.067% of reading per °F (+0.12% per °C)
Housing Material: UV-resistant PVC plastic
Dimensions (Length x Width x Height): 2.00” x 2.75” x 2.25” (51 mm x 70 mm x 57 mm)
Weight: 0.5 lbs. (226 g)

Aquaflex SI.99 Soil Moisture Sensor

Power Supply Voltage: +6.0 to +26 Volts, DC
Power Supply Current: 10mA average, 150mA peak (for 60 milliseconds during measurement) plus two current loops of up to 20mA each
4-20mA Outputs:
  Moisture Output: 4-20mA representing the moisture range 0-60%
  Temperature Output: 4-20mA representing the temperature range -10 to 50 °C
  Maximum load resistance: 250 Ohms with 9 Volts supply, 1 kill Ohm with 24 Volts supply
  The 4-20mA signals may be converted to voltage signals by connecting external resistors across the 4-20mA outputs.
  Using a 125W resistor results in a 0.5 to 2.5V range.
Frequency Output Signal: (Soil Moisture Only)
  0 to 5 volts logic signal
  10 pulses per minute = 0% Volumetric Soil Moisture Content
  130 pulses per minute = 60% Volumetric Soil Moisture Content
  Special frequency ranges are available on request
Time To Measure: 0.8 seconds after power supplied (typical) - 1 second maximum
Time Between Measurements: 1 minute if power applied constantly
Operating Temperature -10 to 40°C (14 to 104°F)
Soil Moisture Measurement:
  Range 0 to 60% volumetric moisture content
  Precision / Repeatability ± 0.5% volumetric moisture content
  Accuracy ± 2% volumetric moisture content
Soil Temperature Measurement:
  The temperature is measured at the body of the sensor, not along the moisture-sensing cable
  Range -10 to 50°C (14 to 122°F)
  Accuracy ± 0.5°C (0.9°F)